Is there cmos image sensor chip that can start and end exposure at same time for all pixel lines?

Hopefully someone in the community has run accross the same issue to help out.

Are you planning to use with TI Davinci chips, if yes, which one?

Thanks,

Tai

There are CMOS sensors which supports so called Global Shutter (especially for Machine Vision or Automotive).

Please check Sensor companies (at least, Aptina and OmniVision have).

Regards,

Sang-Yong

Thanks SANG-YONG,

"There are CMOS sensors which supports so called Global Shutter (especially for Machine Vision or Automotive)"

        -------------I know some Micron(Aptina) cmos image sensor have Global Release Shutter mode, -----but it can't end exposure AT SAME TIME for all pixel lines. --------

In fact the Global Shutter have a large one pixel line by one pixel line exposure ending delay time. I wonder how highspeed industry camera implement less than 1ms exposure time.

Won,

Sang-Yong is in fact correct.  Global shutter means that exposure starts and stops at exactly the same time for all pixels.  Sensors that end exposure 1 line at a time are called "Rolling Shutter".  Here is a website that explains these concepts:

http://www.dalsa.com/mv/knowledge/globalshutter.aspx

Yes.

 CMOS w/ Rolling Shutter sometimes provide Global Reset, so you can start Exposure at the same time. But, as they cannot read-out the data at a time, some photo-cell takes more light. In order to avoid this, you need to have M-shutter (which you cannot use).

 Global shutter is different as it has "Storage cell". So, it can take out the data to "Storage cell" at a same time. It is like CCD which has "Charge Corridor" so you can dump data from photo-cell at a same time.

As it has "Storage cell", its price should be higher and the size should be bigger.

Regards,

Sang-Yong

Thanks everybody,

I think the "Global Reset Release" mode(difference with ERS mode) from MT9P031datasheet is same as the "Global shutter" that you said, but It seems wrong.

Yes, it requires Mechanical Shutter to avoid Rolling shutter artifact.

You need to choose different type of sesor to achieve your goal.

regards,

Sang-Yong

so far, I found only a 5MP cmos image sensor support global shutter is OV5647, bu it seems for mobile or consumer electronic application, and it maybe hard to purchase. Is there anyone can get some info?

There are more industrial sensors from Aptina and OmniVision.

Please contact the sensor companies.

Regards,

Sang-Yong

Aptina's MT9V032 http://www.aptina.com/products/image_sensors/mt9v032c12stc/#overview

At Aptina, they call Global Shutter "True Snap"